National Weather Service United States Department of Commerce

Heavy rain and higher elevation snow continue for the Northwest, fire danger continues in Southern California

A series of Pacific storms will bring strong winds, heavy rain, and mountain snow to the Pacific Northwest and northern Rockies through Sunday. Heavy rainfall and flooding is possible from the Mississippi Valley to the Deep South and Southeast U.S. this weekend and into early next week. Dry winds will prolong the fire weather threat for Southern California for several days. Read More >

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July 2010
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  • Tulsa: July 2010 ranked 7th for warmest monthly average minimum temperature (since records began in 1905).
  • Tulsa: A daily rainall record was this month: 2.48" on 7/08/2010 (previous record was 1.02" in 1906)
  • Fort Smith: July 2010 ranked 2nd for warmest monthly average minimum temperature (since records began in 1882).
  •  Fort Smith had 4 days in a row with minimum temperatures >= 78°F, which ties for the 9th greatest number of consecutive days at or above this temperature.  Tulsa also tied for 9th greatest number of consecutive days at or above 78°F, with 6 days in a row.  July 1, 2010 was the only day during the month where the daily low temperature was below 70°F at both Tulsa and Fort Smith.
  • This month, moderate flooding occurred along the Neosho River near Commerce.  Minor flooding occurred twice this month along the Illinois River near Watts and along the Caney River at Bartlesville.  Luckily, the minor flooding was short-lived near Watts and in Bartlesville.
  • Rainfall totals for July 2010 primarily ranged from 2 to 6 inches across eastern OK and northwest AR.  However, there were pockets of only 1 to 2 inch totals, as well as areas which received around 10 inches of rain this month.

  • Washington Co. AR received a locallized rainfall maximum (highest totals in the area this month) while immediately to the west, Adair and Cherokee Counties were in a locallized minimum of rainfall (receiving some of the lowest rainfall totals this month).  The rainfall at Fayetteville exceeded 9 inches this month (most of which fell on the 13th and 15th).  Another example illustrating the localized nature of this month's rainfall shows up across the Tulsa Metro Area, where Jenks Riverside Airport (RVS) received a total of 8.63 inches of rain this July, while approximately 12 miles away, the Tulsa International Airport (TUL) received 4.67 inches.

  •  The Climate Prediction Center (CPC) outlook for August 2010 (issued July 31, 2010) indicates a slightly enhanced chance for above average temperatures and an equal chance for above, near, and below median precipitation.  For the 3-month period Aug-Sep-Oct 2010, CPC is also forecasting a slightly enhanced chance for above average temperatures and an equal chance for above, near, and below median precipitation (outlook issued July 15, 2010).  The enhanced chance for above normal temperatures is consistant with a developing La Niña.
  • Sea-surface temperatures in the equatorial Pacific have continued to decreased and are now La Niña conditions are present.  CPC, has issued an La Niña Advisory and La Niña conditions are expected to strengthen and last through the Northern Hemisphere winter 2010-11.
  •  According to the Drought Monitor on July 27, 2010, abnormally dry (D0) and moderate drought (D1) conditions existed across Choctaw, Pushmataha, and southern Le Flore Counties in southeast Oklahoma.  No drought conditions existed elsewhere across eastern OK or northwest AR.